pre ap chem
posted by lilly on .
heating an ore of antimony and iron II sulfide.
when 15g Sb2S3 reacts with an excess of Fe, 9.84g Sb is produced. what is the pecent yeild of this reaction?
Convert 15 g Sb2S3 to mols using mols = g/molar mass.
Convert mols Sb2S3 to mols mols Sb using the coefficients in the balanced equation.
Convert mols Sb to grams using g = mols x molar mass. This is the theoretical yield.
%yield = [(actual yield)/(theoretical yield)]*100
actual yield is 9.84 g.
theoretical yield is calculated above.